Pump



1933- G. G. MONTGOMERY ET AL ,1

PUMP

Filed Feb. 9, 1937 2 Sheets-Sheet 1 Inventors .6? 6727022 zgo'mery Iii/ya]; zgomery,

By @M A fiorneys 06L 1933- G. G. MONTGOMRY E AL 2,134,087

P MP

, Filed Feb. 9, 1937 2 Sheets-Sheet 2 I Inventor:

Patented Oct. 25, 1938 2,134,087"

- .UNITED- PATE T oFFlcEf 7 Glen G. Montgomery and David E. Montgomery,

Mirando City, Tex.

I Application February 9, 1937, Serial No. 124,908

' 1 Claim. (01.103-155) This invention appertains to new and useful therein and this is slidable on the said tube l6 improvements in pumps especially adapted. for with the shell 1. use in oil wells. The body i9 is provided with the depending The principal object of the present invention skirt portion 22 internally threaded to receive is to provide an oil well pump constructed in such the upper reduced threaded portion of the body a manner as to save considerable time when the 23, and this skirt portion 22 defines a compartsame has to be pulled from the well for the purment, 24 in which is located the ball cage 25 of pose of changing cups and repairing or replacing upwardly tapering construction, the lower end other parts. of which threadedly receives an upward exten- 10 Another important object of the invention is to sion 25 of the body 23 and between this extension 10 provide a pump which will be positive acting and and the lower portion of the Cage the Seat 21 s not susceptible to the ready development of declamped for Supp the hell The Sides fects. of this cage 25 are provided with openings 29 These and various other important objects and ports 39 extend downwardly through the and advantages of the invention will become body 59 from the pocket l8 to communicate with 15 apparent to the reader of the following specithe said chamber 24. The body I9 is provided fication. with an upwardly extending recess 3| therein In the drawings:- in winch the ball 32 is free to move, this ball Figure 1 represents a side elevational view f being seatable on the seat structure 33 which is the pump assembly. clamped between the upper end of the cage 20 Figure 2 is a longitudinal sectional View and the b y l9. D ar p r s 34 ex end through the pump assembly. I radially from the body l9 to open into the space Figure 3 is a cross section on the line 3-3 of bet/Ween the y 19 and the Well tubing Figure 2. The lower portion of the body 23 is provided 25 Figure 4 is a cross sectional view on the line with clips 25 44 of Figure 2. A modified form of valve cage is shown in Figure 5 is a side elevational view of the ball Fi 7 d denoted by r f r n ra r 5 cage. the same being provided with an intermediate Figure 6 is top plan view f modified form threaded portion 25b for engaging into the lower of the cage. end of the skirt 22 and a depression 250 in its 30 Figure 7 is a vertical sectional View on the line upper end for receiving t e Va ve Seat 33. The 1-4 of Figure 6; ports 29a extend substantially vertical to bein Referring to the drawings wherein lik the same direction substantially as the intake merals designate like parts, it can be seen that ports the numeral 5 represents the well tubing and It can now be Seen, that When the Shell 7 S 35 numeral 6 generally refers to the pump assembly. pulled upwardly, the Chamber 35 is increased, 2 This pump assembly consists of the shell I havcausing a suction through the t p s 0, ing the plug 8 in the u er d th f from chamber 25 and body 23. Thus liquid is drawn whi h rises the rod n tin nipple 9 into the chamber 2 ports 39, pocket l8, tube I6 40 Located within the shell 1 is the barrel it on v and Chamber On the down Stroke of the 40 which the pump cups are located, these Cups shell 7', the capacity of the chamber 36 will, of being divided into the upper group H and the course, be decreased. The ball 28 will become lower group I2 between which groups is the am seated on the seat 2i and the pressure of the nular spacer l3. Spacers M are provided belqmd m the pump Wm unseat the ball 32 and allow the liquid to pass outwardly through the 45 tween the individual cups and a removable el h t taming nut I5 is provided on the upper end of 253 555: 22 55? ifiggi g thepump i baniel a S0 j the cups can be removed While the foregoing specification sets forth an rep ace eslred' the invention in specific terms, it is to be under- The tube 1S thread-ed Into the bushmg stood that numerous changes in the shape, size 50 which, in turn, is threaded into h Docket of and materials may be resorted to without departthe y the pp end of thlS tube belng ing from the spirit and scope of the invention threaded as at 20 into the lower end of the barrel s claimed hereinafter.

I0. It can also be observed that the lower end Having described the invention what is claimed of the shell I is provided with the bushing 2| as new is: 55

A pump comprising a lower body having a bore therethrough and arranged in a well casing against movement relative thereto, packing means on the body engaging the well casing, an upper body having a chamber in the upper end thereof and including a skirt threaded on the lower body to provide a lower chamber arranged between said bodies, said upper body having passages connecting said chambers and provided with a valve recess and discharge ports opening outwardly through the outer face thereof and connecting with the valve recess, a valve cage threaded on the lower body within the lowen chamber and having side ports communicating with the lower chamber and an end port, a valve seat for said end port and held against the upper body about the lower end of the recess below said discharge ports, a bell valve for said seat to admit fluid under pressure from the lower chamber to the recess for escape by way of the discharge ports to the well casing above the lower body, a

' seat, a hollow barrel including a sleeve detachably connected to the upper body and in communication with the first-named chamber, packing on said barrel, a reciprocal shell receiving the barrel with a frictional fit by the packing thereof and providing between the barrel and the upper end thereof a suction chamber, and a guide collar slidable on the sleeve and detachably secured to the lower end of the shell for the closing of the lower end of said shell and to cooperate with the packing of the barrel in guiding the movement of the shell relative to said barrel.

DAVID E. MONTGOMERY. GLEN G. MONTGOMERY. 

